
Express Steuer
Boosting Sign-ups by 135%; Conversion Optimization in a Tax Simulation Funnel

my role
Responsible for the acquisition funnel
setup
Bi-weekly cross-functional sprints
Time frame
Q4 2023

Express Steuer is a tax filing tool. It replaces complex forms with a simple flow, and helps users file taxes quickly, stress-free, and often with a better refund.
Problem
Users dropped off heavily at the final 3 steps of the tax estimation funnel, signalling deep issues of trust and clarity.

25%
Deviation from final tax notice
0.5%
Conversion Rate (30% bellow benchmark)
90%
Drop after the result step, & a similar drop on the following step
Bellow are the result, submission, and legal consent screens

Objective & Approach
Increase conversion from estimation to account creation by improving trust & clarity. We approached it through a broader scope: how can we make experience feel transparent, reliable, and motivating?
Sprint 01.
Exploring
Benchmarking
Data Analysis
Sprint 02.
Defining
Ideation
Stakeholder Alignment
Testing
Sprint 03.
Developing
Scoping
Craft
Alignment
Hand-off
Benchmarking
Competitors favor approachable language & live feedback but lack clarity. Wins: trust, progressive disclosure, visible refunds; losses: cognitive load, unclear breakdowns.

Ideas to Explore
01.
Show a persistent running refund
02.
Bite-sized contextual explanations
03.
Focus on one action per step or screen
04.
Prioritise interactive components over inputs
Data Analysis
I reviewed a previous Heart assessment and data, identifying friction, drop-offs, and high engagement areas—forming a redesign foundation.
Identified Issues
01.
Manual address fields
High abandonment / slower progression.
02.
Inconsistant Inyterface
Slower scanning, long time-on-task.
03.
No inline validation
More errors and backtracking.
04.
Arrow not discoverable
High frustration and bounce rate


A cross-functional session generated ideas tailored for our user segments, product functions & their needs.
Experienced Users
Checks their calculations in full
Frustrated Users
Needs continuous communication
Low Intention Users
Low confidence with Express Steuer
First Time Users
Low on tech. Value human interaction.
Cross-Functional Ideation & Testing
Testing with 15 users revealed confidence in estimates & smoother navigation.


Release
3 releases to balance business prio & tech feasibility. I aligned product and engineering for scope, dependencies, and rollout, ensuring quality while minimising dev risk.


First week A/B testing indicates conversion rate increase by 135% and bounce rate drop by 119%.








